/Engine/Source/Runtime/Engine/Classes/Engine/ActorChannel.h
Sets the owner of the next replicated subobjects that will be passed to ReplicateSubObject. The ActorComponent version will choose not to replicate the future subobjects if the component opted to use the registered list.
static void SetCurrentSubObjectOwner ( [AActor](API\Runtime\Engine\GameFramework\AActor) * SubObjectOwner )